Same-sex sexual behaviour has been recorded in around 1,500 species, from insects and starfish to birds and mammals. Yet sex ...
Biologists tend to look at the animal kingdom and try to categorize things in an organized fashion. But nature has a way of ...
Bonds between same-sex individuals help apes and monkeys to manage conflict and strengthen alliances, especially in dry ...
Rensch’s rule suggests that sexual size dimorphism (SSD) increases with species size when males are the larger sex, whereas it decreases when females are the larger sex. However, the process ...